Periodex

by Carlos Jeurissen · periodex.co · Education

FeaturedEstablished publisherManifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Elegant periodic table of elements

Users

5,000

0 in 30 days

Rating

4.5 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#14K

#12K among extensions

Version

7.7.0

updated 10 Mar 2026

Users

monthly, 3 years

Latest, 15 Oct 2026: 5,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years

Latest, 15 Oct 2026: 46 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Periodex

Periodex is a simple, responsive way to explore the periodic table of elements. We hope it provides a quick and enjoyable reference for students and enthusiasts. Periodex has just began. We plan to add more features and information. If there's a way that we can make it more valuable to you, please let us know! To use Periodex, simply hover over an element to reveal addition information on the info panel on the right side. You can click on an element to lock the focus. Click again to unlock. You can toggle the info panel by clicking the info button on the top bar. Periodex is designed to be flexible. Grab a corner and adjust the size to fit your needs.